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Table 4 Comparison of bias and accuracy between eGFRs and mGFR in different BMI groups

From: Choosing an appropriate glomerular filtration rate estimating equation: role of body mass index

BMI Total < 25% 25–75% > 75%
Equation Bias
(mL/min/1.73 m2) (eGFR, 95% CI)
30%
accuracy
Bias
(mL/min/1.73 m2) (eGFR, 95% CI)
30%
accuracy
Bias
(mL/min/1.73 m2) (eGFR, 95% CI)
30%
accuracy
Bias
(mL/min/1.73 m2) (eGFR, 95% CI)
30%
accuracy
eGFREPI_Cr_2009 −4.2(− 5.5 - -3.0) 70.1% 2.3(−0.1–4.8) 71.8% −4.0(−5.8 - -2.5) 74.7% −11.1(−13.5 - -8.4) 59.3%
eGFREPI_CysC_2012 8.4(7.3–9.6) 74.0% 13.1(10.7–15.7) 67.5% 8.6(7.0–10.1) 75.9% 3.3(1.2–5.5) 76.6%
eGFREPI_Cr_CysC_2012 9.6(8.6–10.7) 74.1% 15.2(13.1–17.3) 64.1% 9.8(8.4–11.2) 75.4% 3.8(1.7–5.8) 78.9%
eGFRFAS_Cr −6.9(−8.5 - -5.4) 69.3% −0.7(−3.8–2.5) 74.2% −7.1(−9.2 - -4.9) 70.6% −12.9(− 16.0 –− 9.9) 61.7%
eGFRFAS_CysC 10.8(9.7–11.9) 73.4% 15.9(13.5–18.3) 64.1% 11.0(9.5–12.6) 76.1% 5.3(3.2–7.4) 77.0%
eGFRFAS_Cr_CysC 4.1(3.0–5.1) 81.5% 9.9(7.8–12.1) 77.5% 4.0(2.5–5.5) 85.0% −1.8(− 3.9–0.3) 78.5%
eGFRa_MDRD −8.4(− 10.2 - -6.7) 63.0% −3.7(− 7.3 - -0.1) 64.6% − 8.5(− 10.9 - -6.0) 65.0% −13.1(− 16.3 - -9.9) 59.8%
eGFRc_MDRD −20.8(−23.0 - -18.6) 47.0% −8.8(− 12.6 - -4.9) 45.5% −20.5(−23.9 - -17.5) 51.1% −24.8(−28.6 - -20.5) 40.2%
  1. Compared with mGFR, P < 0.01;
  2. ▲Compared with mGFR, P < 0.05;
  3. □Compared with mGFR, P = 0.061;
  4. ■Compared with mGFR, P = 0.401
  5. Compared with mGFR, P = 0.679;
  6. Compared with mGFR, P = 0.095;